How to distinguish stepping motor, servo motor and ordinary motor?

Distinguish the difference between the three. There are three differences between stepping motor, servo motor and ordinary motor:

First of all, these three uses are different:

1, uses of stepping motor: widely used in various automatic control systems. With the development of microelectronics and computer technology, the demand of stepping motor is increasing day by day, and it has been applied in various fields of national economy.

2, the use of servo motor: DC servo motor can be applied to spark machines, robots, precision machine tools, etc.

3. Uses of general motors: widely used in household appliances, such as electric fans, refrigerators, air conditioners, vacuum cleaners, etc.

Second, the main functions of the three are different:

1, the main function of the stepping motor: The stepping motor is an induction motor, and its working principle is to use electronic circuits to change direct current into time-sharing power supply and multiphase timing control current. Only when this current is used to supply power to the stepping motor can the stepping motor work normally. The driver is a multiphase timing controller.

2. The main function of the servo motor: The servo motor is used in a closed loop. In other words, it transmits the signal to the system at any time, and corrects its operation with the signal given by the system. The servo motor can also be controlled by a single chip microcomputer.

3. The main function of ordinary motor: The main function is to generate driving torque. As the power source of electrical appliances or various machines, the generator is represented by the letter G in the circuit, and its main function is to convert mechanical energy into electrical energy.

Third, the characteristics of the three are different:

1. Features of stepping motor: the angular displacement can be controlled by controlling the number of pulses, so as to achieve the purpose of accurate positioning; At the same time, the speed and acceleration of motor rotation can be controlled by controlling the pulse frequency, so as to achieve the purpose of speed regulation.

2. Servo motor features: no brush wear, high speed, long service life, low noise and no electromagnetic interference.

3. Features of common motor: The common motor has fast response and large starting torque, and can provide rated torque from zero speed to rated speed. But the advantage of DC motor is also its disadvantage, because the armature magnetic field and rotor magnetic field must be kept at 90 degrees to produce constant torque performance under rated load, which depends on carbon brush and commutator.

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